Burner for incandescent gas-lighting.



PATENTED MAY 23, 1905.

J. w. BRAY. BURNER FOR INUANDESGBNT GAS LIGHTING.

APPLIOATION FILED SEPT. 6, 1904.

NITED STATEs Patented May 23, 1905.

JOHN W. BRAY, OF LEEDS, ENGLAND.

BURNER FOR INCANDE SCENT GAS-LIGHTING.

SPECIFICATION forming part of Letters Patent No. 790,714, dated May 23, 1905. Application filed September 6, 1904:. Serial No. 223,546.

1' 0 all whom it may concern:

Be it known that I, J OHNWILLIAM BRAY, a subject of the King of Great Britain and Ireland, residing at Leeds, county of York, England, (whose posto'fiice address is Bagby l/Vorks, Leicester Place, Leeds, aforesaid,) have invented certain new and useful Improvements in and Relating to Burners for Incandescent Gas-Lighting, of which the following is a specification.

This invention relates to improvements in burners for incandescent gas-lighting, and is a development of the kind of burner-head or tip described and set forth in my Letters Patent No. 750,018, of January 19, 1904:.

According to my former patent a burner head or tip of non-corrosive material was combined with wire-gauze immediately in contact with the under side of the burner head or tip.

My present invention relates to a novel form of tip, in which wire-gauze is not required.

My improved head or tip is made in two series or layers of vertical orifices, the orifices being, preferably, substantially rectilineal, both layers of orifices being formed in the same piece of non-corrosive material or in two superposed layers thereof. The bottom layer of orifices takes the place of and is equivalent to the wire-gauze diaphragm M described in my above-named patent and has much smaller and more numerous orifices than the top layer. The orifices in the top layer are made larger than in the bottom layer, so as to allow of the free passage of the air and gas to the point of ignition after passing through the lower layer of smaller and more numerous orifices, which, as before stated, is substituted for the before-referred-to wire-gauze.

In burner heads or tips made according to my specification No. 750,018, of 1904, in order to prevent lighting back wire-gauze of suitable mesh is inserted immediately below and in contact with the said burner head or tip. This wire-gauze is liable to corrode and is also. liable to have adhere to it dust and other moving particles which pass up with the atmosphere. It is also further liable to become deranged, and thus permit lighting back.

All these several features impair the value of the burner head or tip, whereas my improved burner head or tip, constructed entirely of non-corrosive material, such as potters clay, and preferably in one piece, prevents lighting back, and dust or other moving particles will not readily adhere to the non-corrosive material of which this burner head or tip is made, as it does to the metallic wiregauze, and there is no possibility of the lower layer of orifices becoming deranged like wiregauze.

In describing my invention in detail, reference is made to the accompanying sheet of drawings, similar letters indicating similar parts. in which- Figure 1 is a plan of the top of the tip. Fig. 2 is a plan of the under side of the tip. Fig. 3 is an elevation of the tip. Fig. 4 is a sectional elevation showing the tip placed in position in the metal socket hereinafter referred to, and Fig. 5 is a sectional plan.

In carrying out my invention I prefer to construct the burner-tip A of potters clay and give the desired form to the tip by stamping or molding in presses usually employed for this class of work; but if I use a material such as steatite the requisite form may be given to thetip by the usual process of turning and drilling or other convenient shaping processes.

1 make one, two, or more concentric circles oforifices B in the top layer C of the tip A, such orifices being, by preference, substantially rectilineal, as described in the above-mentioned specification. If there be two concentric circles of orifices B in the top layer C, as shown in the drawings, I form in the bottom layer D, by similar means by preference, four circles of similar but smaller orifices E, as shown in the drawings, these lower orificesE taking the place of the metallic wire-gauze as hitherto used.

In order to carry or support the mantlerod, a hole F is formed by any convenient means in the center of the tip A and grooves G formed in the walls of the said hole F for the purpose of carrying a clip, such as described in my specification No. 750,018, of 190 1. The tip A of non-corrosive material may be mounted in a socket or tube of metal and be detachable from the burner.

Where the concentric layers C and D of the vertical orifices are in two separate plates, as shown by the dotted line in Fig. 4, I mount these two together in one tube or socket and confine them in juxtaposition by flan'ging or spinning suitable projections in the metal of the tube H, as shown at J and K in Fig. 4.

What I claim as my invention is 1. As a new article of manufacture, a tip for incandescent gas-burners having a series of orifices for the escape of the gas, and a screen made integral with the tip, substantially as' described.

2. As a new article of manufacture, a tip for incandescent gas burners having a series JOHN W. BRAY.

Witnesses:

OLIVER MANSFIELD, CLIVE WAUGH. 

